ss.cheat

% ss, socket statistics

# Summary of socket connections (all connections, show port and service number, incl. process names)

ss -plants

# close active connections. It works for IPv4 and IPv6 and can be used with the --kill option. Typically you want to combine this with a specific IP address and optionally a port.
ss --kill dst <ip address> dport = <port>

# monitor connections ( see the amount of traffic and great for monitoring or when to do system maintenance)
ss -n --events

# open connections on a port
ss -nt sport = :<port>

# Query multiple ports
ss -nt '( sport = :<port 1> or sport = :<port 2> )'

# Connection by defining the side ‘src’ (source) or ‘dst’ (destination)

ss -nt '( src :<port 1> or src :<port 2> )'